#include <stdio.h>
#include <string.h>

int main(){
  char str[]="Hello World!";
  char *substr = "World";
  char *result = strstr(str, substr);
  printf("*result is %s\n", result);
  printf("*(result+1) is %s\n", result+1);
  printf("result is %p\n", result);
  printf("result is %p\n", result+1);
}
